Rail-bond.



C. P. VAiLL.

RAIL BOND.

APPLICATION FILED Aus.2B. 1912.

wmmu Patented Oct. 19, 1915.

"a n l i. n i n 7%;23 ti alt PU .il.

PQRKTIUN or NEW' JERSEY.

GHARLES VAILL OIE WORCESTER, MASSACHUSETTS, ASSIGNOE TO THE AIMEE STEEL v WIRE GOMPANEZ' 01 NEW JERSEY, 0F HOBOKEN, NEW JERSEY,

RAIL-$03111.

Specification of Letters Patent.

Patented oer.

Application filed August 528, 1912. Serial No. 717.488.

which the bond terminals are soldered tothe ends of the rails.

One object of my invention is to provide a rail bond of ii'i'rproved construction having novel means by which the terminals are attached or secured to the rails to which they are applied for use, and another object of this inventionis to provide a rail bond hav ing bond terminals of novel construction whereby the electrical elliciency of the bond improved and a perfect electrical contact with the rail is obtained.

Referring to the accompanying drawings forming part of this specification, Figure 1 is a plan showing a rail bond having terminals constructed and arranged in accordance with my invention. Fig. 2 is a side elevation of the same. Fig. 3 is an end elevation of the construction shown in Figs. 1 and 2. Fig. 4 is a sectional end elevation on the line lVlV of Fig. 1.

In the drawings 2 designates the flexible member or conductor of the bond which is made up of a series of thin, fiat metallic strips, copper heing the material preferably empldyed in forming the conductor.

lhe ends of the conductor 2 have bond terminals 3, 3, the ends hi the strips fori'ning the teminals being incased on three sides with an enveloping sheath or sleeve l and the so-covered ends of the strips are then then heated and welded together so to form a rail bond having substantially solid end portions forming the terminals 3, 3 connected together lay a series of separate and independent leaves or l'aminations formed of the flat, tho. strips of which the flexible conductor 2 is composed.

The side 5 of the terminals 8, or side which is in contact with the rails in soldering or welding the bonds to the rails in connecting the rails, is not covered with the sleeve i so that the body of the rail bond terminals 3 or edge portions'o'i the strips forming the terminals 3 engage directly with the surfaces oi the rail ends to which the bond is applied for use.

The contacting surface of the bond terminals at is flared outwardly so as to extend at an angle to the plane of the side of the connector formed by the laminations or strips After the bond is formed as has been described the terminals 3 are tinned prior to aliixing the rail bonds to the rails or other place of use to facilitate the soldering operation. when the bonds are to be soldered in place.

T he advantages of my invention will be a parent to those skilled in the art. By enveloping the ends or terminals of the bond with a sleeve '01: sheath on three sides of the bond, the mechanical efficiency of the bond is greatly improved while by omitting the sheath or sleeve on the side of the terminals which contacts with the rails in attaching the bonds to the rails, the electrical cl'liciency of the rail bond is materially increased.

h'iodifications in the construction of the laminated conductor and in the form and size or the terininals of the bonds may he i made without departing from my invention as defined in the claims.

it claim 1. A rail bond having a laminated conductor with the ends of the laminae Welded together to form solid terminals on the ends" of the bond, and having an envelop or sheath,

welded to and covering the terminals, the

edges of the laminm on one side of the ter minals forming a fiat plane surface and be ing exposed to permit direct contact of the edge of each lamination with the, rails to which the bond is applied. l

2. A rail bond having a laminated conductor with the ends of'the laminaewelded-- together to form solid terminals onthc ends of the bond, and having an""entielop or sheath covering the terminals, the edges of In testimony whereof, I have hereunto set the'lamlnae on one slde of the terminals my hand.

forming a flat plane surface and being eX- CHARLES P. VAILL. posed to permit direct contact of the edge \Vitnesses: ofi each lamination with the rails to which OTTO F. BECKLUND,

. the bo d is applied. JAM-ES P. FOLEY. 

